What problem does it solve? Turning an approved implementation plan into working code without losing accountability is hard: workers drift from contracts, checks get weakened, and partial runs get reported as done. This Skill orchestrates plan execution so every task's contract is made true, every plan-authored check actually runs, and what changed is reported from the tree rather than from worker claims. ## Core Features & Use Cases - Sequential subagent dispatch: One worker per task in plan order, each handed the task's contract verbatim, with the orchestrator keeping the sequence and the branch. - Check freeze and activation: Every plan-authored check is frozen up front outside the target's discovery path, activated one at a time immediately before its task, and byte-compared afterwards so no worker can weaken it. - Full-suite gate after every task: Per-task checks prove the task did its job; the gate proves the rest of the project still works, and a red gate stops the sequence. - Use Case: A team has an audited, approved plan.md with five tasks and declared acceptance checks. This Skill cuts a branch, freezes the checks, dispatches five workers one at a time, runs checks and the gate after each, and reports the real diff before asking whether to commit. ## Quick Start Execute the approved plan.md in this repository by dispatching one subagent per task in order and running each task's checks plus the full-suite gate.